Going crazy over mod_deflate

Before I start, I am using apache 2.0.52 with PHP 4.3.9. In my .htaccess, I have a rewrite rule that rewrites /bb.flv as /bb.php, and this bb.php file reads a flv file and outputs it. In the PHP file, I am specifying content-type as video/x-flv and content-length, however mod_deflate still compresses this, and also removes the content-length header from the response, and this messes up the flv player!... I tried everything, simply everything, and yet could not get mod_deflate to by-pass this file. For some reason, it does not see this content as video/x-flv, and treats is as regular text???? And, when I disable the mod_deflate filter, everything returns back to normal. BTW, I am not doing any compression on the PHP side!... Things I tried are: + AddOutputFilterByType DEFLATE text/html text/plain text/xml + SetEnvIfNoCase Request_URI \ \.(?:gif|jpe?g|png|flv)$ no-gzip dont-vary I tried putting these in <directory>, <location>, <virtual> and global context, and none of them worked. Additionally, I tried to rewrite the type using the rewriterule as: RewriteRule ^bb.flv /bb.php [T=video/x-flv] I also tried ForcedType, AddTpe, AddOutputFilter (by extension), etc. etc. But, still the output is compressed. And, the response headers I am seeing are: content-disposition: inline; filename=123.flv Vary: Accept-Encoding Content-Encoding: gzip Keep-Alive: timeout=5, max=96 Connection: Keep-Alive Transfer-Encoding: chunked Content-Type: video/x-flv Can you please tell what I am missing here and/or is there anyway I can by-pass the mod_deflate compression? TIA.